Cocoa: Implement Drag-and-Drop.

Implement drag and drop support for drags originating
from outside Qt. Port mime and pasteboard code from
Qt 4. Use QSimpleDrag from from platform support to
implement internal Qt drags.

Change-Id: I5b664a95ebb00f48de2bd21c24dfb579af16123e
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

1 files changed, 938 insertions, 0 deletions

diff --git a/src/plugins/platforms/cocoa/qmacmime.mm b/src/plugins/platforms/cocoa/qmacmime.mm
new file mode 100644
index 0000000000..db86deb91c
--- /dev/null
+++ b/src/plugins/platforms/cocoa/qmacmime.mm
@@ -0,0 +1,938 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmacmime.h"
+#include "qcocoahelpers.h"
+#include "qmacclipboard.h"
+
+#include "qdebug.h"
+#include "qpixmap.h"
+#include "qimagewriter.h"
+#include "qimagereader.h"
+#include "qdatastream.h"
+#include "qbuffer.h"
+#include "qdatetime.h"
+#include "qguiapplication.h"
+#include "qtextcodec.h"
+#include "qregexp.h"
+#include "qurl.h"
+#include "qmap.h"
+
+#include <Cocoa/Cocoa.h>
+
+QT_BEGIN_NAMESPACE
+
+extern CGImageRef qt_mac_createCGImageFromQImage(const QImage &img, const QImage **imagePtr = 0); // qpaintengine_mac.cpp
+
+typedef QList<QMacPasteboardMime*> MimeList;
+Q_GLOBAL_STATIC(MimeList, globalMimeList)
+
+static void cleanup_mimes()
+{
+    MimeList *mimes = globalMimeList();
+    while (!mimes->isEmpty())
+        delete mimes->takeFirst();
+}
+
+Q_GLOBAL_STATIC(QStringList, globalDraggedTypesList)
+
+/*!
+    \fn void qRegisterDraggedTypes(const QStringList &types)
+    \relates QMacPasteboardMime
+
+    Registers the given \a types as custom pasteboard types.
+
+    This function should be called to enable the Drag and Drop events
+    for custom pasteboard types on Cocoa implementations. This is required
+    in addition to a QMacPasteboardMime subclass implementation. By default
+    drag and drop is enabled for all standard pasteboard types.
+
+   \sa QMacPasteboardMime
+*/
+Q_WIDGETS_EXPORT void qRegisterDraggedTypes(const QStringList &types)
+{
+    (*globalDraggedTypesList()) += types;
+}
+
+const QStringList& qEnabledDraggedTypes()
+{
+    return (*globalDraggedTypesList());
+}
+
+
+/*****************************************************************************
+  QDnD debug facilities
+ *****************************************************************************/
+//#define DEBUG_MIME_MAPS
+
+//functions
+extern QString qt_mac_from_pascal_string(const Str255);  //qglobal.cpp
+extern void qt_mac_from_pascal_string(QString, Str255, TextEncoding encoding=0, int len=-1);  //qglobal.cpp
+
+ScrapFlavorType qt_mac_mime_type = 'CUTE';
+CFStringRef qt_mac_mime_typeUTI = CFSTR("com.pasteboard.trolltech.marker");
+
+/*!
+  \class QMacPasteboardMime
+  \brief The QMacPasteboardMime class converts between a MIME type and a
+  \l{http://developer.apple.com/macosx/uniformtypeidentifiers.html}{Uniform
+  Type Identifier (UTI)} format.
+  \since 4.2
+
+  \ingroup draganddrop
+  \inmodule QtWidgets
+
+  Qt's drag and drop and clipboard facilities use the MIME
+  standard. On X11, this maps trivially to the Xdnd protocol. On
+  Mac, although some applications use MIME to describe clipboard
+  contents, it is more common to use Apple's UTI format.
+
+  QMacPasteboardMime's role is to bridge the gap between MIME and UTI;
+  By subclasses this class, one can extend Qt's drag and drop
+  and clipboard handling to convert to and from unsupported, or proprietary, UTI formats.
+
+  A subclass of QMacPasteboardMime will automatically be registered, and active, upon instantiation.
+
+  Qt has predefined support for the following UTIs:
+  \list
+    \i public.utf8-plain-text - converts to "text/plain"
+    \i public.utf16-plain-text - converts to "text/plain"
+    \i public.html - converts to "text/html"
+    \i public.url - converts to "text/uri-list"
+    \i public.file-url - converts to "text/uri-list"
+    \i public.tiff - converts to "application/x-qt-image"
+    \i public.vcard - converts to "text/plain"
+    \i com.apple.traditional-mac-plain-text - converts to "text/plain"
+    \i com.apple.pict - converts to "application/x-qt-image"
+  \endlist
+
+  When working with MIME data, Qt will interate through all instances of QMacPasteboardMime to
+  find an instance that can convert to, or from, a specific MIME type. It will do this by calling
+  canConvert() on each instance, starting with (and choosing) the last created instance first.
+  The actual conversions will be done by using convertToMime() and convertFromMime().
+
+  \note The API uses the term "flavor" in some cases. This is for backwards
+  compatibility reasons, and should now be understood as UTIs.
+*/
+
+/*! \enum QMacPasteboardMime::QMacPasteboardMimeType
+    \internal
+*/
+
+/*!
+  Constructs a new conversion object of type \a t, adding it to the
+  globally accessed list of available convertors.
+*/
+QMacPasteboardMime::QMacPasteboardMime(char t) : type(t)
+{
+    globalMimeList()->append(this);
+}
+
+/*!
+  Destroys a conversion object, removing it from the global
+  list of available convertors.
+*/
+QMacPasteboardMime::~QMacPasteboardMime()
+{
+    if (!QGuiApplication::closingDown())
+        globalMimeList()->removeAll(this);
+}
+
+class QMacPasteboardMimeAny : public QMacPasteboardMime {
+private:
+
+public:
+    QMacPasteboardMimeAny() : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL) {
+    }
+    ~QMacPasteboardMimeAny() {
+    }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeAny::convertorName()
+{
+    return QLatin1String("Any-Mime");
+}
+
+QString QMacPasteboardMimeAny::flavorFor(const QString &mime)
+{
+    // do not handle the mime type name in the drag pasteboard
+    if (mime == QLatin1String("application/x-qt-mime-type-name"))
+        return QString();
+    QString ret = QLatin1String("com.trolltech.anymime.") + mime;
+    return ret.replace(QLatin1Char('/'), QLatin1String("--"));
+}
+
+QString QMacPasteboardMimeAny::mimeFor(QString flav)
+{
+    const QString any_prefix = QLatin1String("com.trolltech.anymime.");
+    if (flav.size() > any_prefix.length() && flav.startsWith(any_prefix))
+        return flav.mid(any_prefix.length()).replace(QLatin1String("--"), QLatin1String("/"));
+    return QString();
+}
+
+bool QMacPasteboardMimeAny::canConvert(const QString &mime, QString flav)
+{
+    return mimeFor(flav) == mime;
+}
+
+QVariant QMacPasteboardMimeAny::convertToMime(const QString &mime, QList<QByteArray> data, QString)
+{
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimeAny: Cannot handle multiple member data");
+    QVariant ret;
+    if (mime == QLatin1String("text/plain"))
+        ret = QString::fromUtf8(data.first());
+    else
+        ret = data.first();
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimeAny::convertFromMime(const QString &mime, QVariant data, QString)
+{
+    QList<QByteArray> ret;
+    if (mime == QLatin1String("text/plain"))
+        ret.append(data.toString().toUtf8());
+    else
+        ret.append(data.toByteArray());
+    return ret;
+}
+
+class QMacPasteboardMimeTypeName : public QMacPasteboardMime {
+private:
+
+public:
+    QMacPasteboardMimeTypeName() : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL) {
+    }
+    ~QMacPasteboardMimeTypeName() {
+    }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeTypeName::convertorName()
+{
+    return QLatin1String("Qt-Mime-Type");
+}
+
+QString QMacPasteboardMimeTypeName::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("application/x-qt-mime-type-name"))
+        return QLatin1String("com.trolltech.qt.MimeTypeName");
+    return QString();
+}
+
+QString QMacPasteboardMimeTypeName::mimeFor(QString)
+{
+    return QString();
+}
+
+bool QMacPasteboardMimeTypeName::canConvert(const QString &, QString)
+{
+    return false;
+}
+
+QVariant QMacPasteboardMimeTypeName::convertToMime(const QString &, QList<QByteArray>, QString)
+{
+    QVariant ret;
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimeTypeName::convertFromMime(const QString &, QVariant, QString)
+{
+    QList<QByteArray> ret;
+    ret.append(QString("x-qt-mime-type-name").toUtf8());
+    return ret;
+}
+
+class QMacPasteboardMimePlainText : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimePlainText() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimePlainText::convertorName()
+{
+    return QLatin1String("PlainText");
+}
+
+QString QMacPasteboardMimePlainText::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("text/plain"))
+        return QLatin1String("com.apple.traditional-mac-plain-text");
+    return QString();
+}
+
+QString QMacPasteboardMimePlainText::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("com.apple.traditional-mac-plain-text"))
+        return QLatin1String("text/plain");
+    return QString();
+}
+
+bool QMacPasteboardMimePlainText::canConvert(const QString &mime, QString flav)
+{
+    return flavorFor(mime) == flav;
+}
+
+QVariant QMacPasteboardMimePlainText::convertToMime(const QString &mimetype, QList<QByteArray> data, QString flavor)
+{
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimePlainText: Cannot handle multiple member data");
+    const QByteArray &firstData = data.first();
+    QVariant ret;
+    if (flavor == QCFString(QLatin1String("com.apple.traditional-mac-plain-text"))) {
+        QCFString str(CFStringCreateWithBytes(kCFAllocatorDefault,
+                                             reinterpret_cast<const UInt8 *>(firstData.constData()),
+                                             firstData.size(), CFStringGetSystemEncoding(), false));
+        ret = QString(str);
+    } else {
+        qWarning("QMime::convertToMime: unhandled mimetype: %s", qPrintable(mimetype));
+    }
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimePlainText::convertFromMime(const QString &, QVariant data, QString flavor)
+{
+    QList<QByteArray> ret;
+    QString string = data.toString();
+    if (flavor == QCFString(QLatin1String("com.apple.traditional-mac-plain-text")))
+        ret.append(string.toLatin1());
+    return ret;
+}
+
+class QMacPasteboardMimeUnicodeText : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeUnicodeText() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeUnicodeText::convertorName()
+{
+    return QLatin1String("UnicodeText");
+}
+
+QString QMacPasteboardMimeUnicodeText::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("text/plain"))
+        return QLatin1String("public.utf16-plain-text");
+    int i = mime.indexOf(QLatin1String("charset="));
+    if (i >= 0) {
+        QString cs(mime.mid(i+8).toLower());
+        i = cs.indexOf(QLatin1Char(';'));
+        if (i>=0)
+            cs = cs.left(i);
+        if (cs == QLatin1String("system"))
+            return QLatin1String("public.utf8-plain-text");
+        else if (cs == QLatin1String("iso-10646-ucs-2")
+                 || cs == QLatin1String("utf16"))
+            return QLatin1String("public.utf16-plain-text");
+    }
+    return QString();
+}
+
+QString QMacPasteboardMimeUnicodeText::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.utf16-plain-text") || flav == QLatin1String("public.utf8-plain-text"))
+        return QLatin1String("text/plain");
+    return QString();
+}
+
+bool QMacPasteboardMimeUnicodeText::canConvert(const QString &mime, QString flav)
+{
+    return flavorFor(mime) == flav;
+}
+
+QVariant QMacPasteboardMimeUnicodeText::convertToMime(const QString &mimetype, QList<QByteArray> data, QString flavor)
+{
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimeUnicodeText: Cannot handle multiple member data");
+    const QByteArray &firstData = data.first();
+    // I can only handle two types (system and unicode) so deal with them that way
+    QVariant ret;
+    if (flavor == QLatin1String("public.utf8-plain-text")) {
+        QCFString str(CFStringCreateWithBytes(kCFAllocatorDefault,
+                                             reinterpret_cast<const UInt8 *>(firstData.constData()),
+                                             firstData.size(), CFStringGetSystemEncoding(), false));
+        ret = QString(str);
+    } else if (flavor == QLatin1String("public.utf16-plain-text")) {
+        ret = QString(reinterpret_cast<const QChar *>(firstData.constData()),
+                      firstData.size() / sizeof(QChar));
+    } else {
+        qWarning("QMime::convertToMime: unhandled mimetype: %s", qPrintable(mimetype));
+    }
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimeUnicodeText::convertFromMime(const QString &, QVariant data, QString flavor)
+{
+    QList<QByteArray> ret;
+    QString string = data.toString();
+    if (flavor == QLatin1String("public.utf8-plain-text"))
+        ret.append(string.toUtf8());
+    else if (flavor == QLatin1String("public.utf16-plain-text"))
+        ret.append(QByteArray((char*)string.utf16(), string.length()*2));
+    return ret;
+}
+
+class QMacPasteboardMimeHTMLText : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeHTMLText() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeHTMLText::convertorName()
+{
+    return QLatin1String("HTML");
+}
+
+QString QMacPasteboardMimeHTMLText::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("text/html"))
+        return QLatin1String("public.html");
+    return QString();
+}
+
+QString QMacPasteboardMimeHTMLText::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.html"))
+        return QLatin1String("text/html");
+    return QString();
+}
+
+bool QMacPasteboardMimeHTMLText::canConvert(const QString &mime, QString flav)
+{
+    return flavorFor(mime) == flav;
+}
+
+QVariant QMacPasteboardMimeHTMLText::convertToMime(const QString &mimeType, QList<QByteArray> data, QString flavor)
+{
+    if (!canConvert(mimeType, flavor))
+        return QVariant();
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimeHTMLText: Cannot handle multiple member data");
+    return data.first();
+}
+
+QList<QByteArray> QMacPasteboardMimeHTMLText::convertFromMime(const QString &mime, QVariant data, QString flavor)
+{
+    QList<QByteArray> ret;
+    if (!canConvert(mime, flavor))
+        return ret;
+    ret.append(data.toByteArray());
+    return ret;
+}
+
+class QMacPasteboardMimeTiff : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeTiff() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeTiff::convertorName()
+{
+    return QLatin1String("Tiff");
+}
+
+QString QMacPasteboardMimeTiff::flavorFor(const QString &mime)
+{
+    if (mime.startsWith(QLatin1String("application/x-qt-image")))
+        return QLatin1String("public.tiff");
+    return QString();
+}
+
+QString QMacPasteboardMimeTiff::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.tiff"))
+        return QLatin1String("application/x-qt-image");
+    return QString();
+}
+
+bool QMacPasteboardMimeTiff::canConvert(const QString &mime, QString flav)
+{
+    return flav == QLatin1String("public.tiff") && mime == QLatin1String("application/x-qt-image");
+}
+
+QVariant QMacPasteboardMimeTiff::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
+{
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimeTiff: Cannot handle multiple member data");
+    QVariant ret;
+    if (!canConvert(mime, flav))
+        return ret;
+    const QByteArray &a = data.first();
+    QCFType<CGImageRef> image;
+    QCFType<CFDataRef> tiffData = CFDataCreateWithBytesNoCopy(0,
+                                                reinterpret_cast<const UInt8 *>(a.constData()),
+                                                a.size(), kCFAllocatorNull);
+    QCFType<CGImageSourceRef> imageSource = CGImageSourceCreateWithData(tiffData, 0);
+    image = CGImageSourceCreateImageAtIndex(imageSource, 0, 0);
+
+    // ### TODO (msorvig) QPixmap conversion
+    //if (image != 0)
+    //    ret = QVariant(QPixmap::fromMacCGImageRef(image).toImage());
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimeTiff::convertFromMime(const QString &mime, QVariant variant, QString flav)
+{
+    QList<QByteArray> ret;
+    if (!canConvert(mime, flav))
+        return ret;
+
+    QImage img = qvariant_cast<QImage>(variant);
+    QCFType<CGImageRef> cgimage = qt_mac_image_to_cgimage(img);
+
+    QCFType<CFMutableDataRef> data = CFDataCreateMutable(0, 0);
+    QCFType<CGImageDestinationRef> imageDestination = CGImageDestinationCreateWithData(data, kUTTypeTIFF, 1, 0);
+    if (imageDestination != 0) {
+        CFTypeRef keys[2];
+        QCFType<CFTypeRef> values[2];
+        QCFType<CFDictionaryRef> options;
+        keys[0] = kCGImagePropertyPixelWidth;
+        keys[1] = kCGImagePropertyPixelHeight;
+        int width = img.width();
+        int height = img.height();
+        values[0] = CFNumberCreate(0, kCFNumberIntType, &width);
+        values[1] = CFNumberCreate(0, kCFNumberIntType, &height);
+        options = CFDictionaryCreate(0, reinterpret_cast<const void **>(keys),
+                                     reinterpret_cast<const void **>(values), 2,
+                                     &kCFTypeDictionaryKeyCallBacks,
+                                     &kCFTypeDictionaryValueCallBacks);
+        CGImageDestinationAddImage(imageDestination, cgimage, options);
+        CGImageDestinationFinalize(imageDestination);
+    }
+    QByteArray ar(CFDataGetLength(data), 0);
+    CFDataGetBytes(data,
+            CFRangeMake(0, ar.size()),
+            reinterpret_cast<UInt8 *>(ar.data()));
+    ret.append(ar);
+    return ret;
+}
+
+
+class QMacPasteboardMimeFileUri : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeFileUri() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeFileUri::convertorName()
+{
+    return QLatin1String("FileURL");
+}
+
+QString QMacPasteboardMimeFileUri::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("text/uri-list"))
+        return QCFString(UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, CFSTR("furl"), 0));
+    return QString();
+}
+
+QString QMacPasteboardMimeFileUri::mimeFor(QString flav)
+{
+    if (flav == QCFString(UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, CFSTR("furl"), 0)))
+        return QLatin1String("text/uri-list");
+    return QString();
+}
+
+bool QMacPasteboardMimeFileUri::canConvert(const QString &mime, QString flav)
+{
+    return mime == QLatin1String("text/uri-list")
+            && flav == QCFString(UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, CFSTR("furl"), 0));
+}
+
+QVariant QMacPasteboardMimeFileUri::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
+{
+    if (!canConvert(mime, flav))
+        return QVariant();
+    QList<QVariant> ret;
+    for (int i = 0; i < data.size(); ++i) {
+        QUrl url = QUrl::fromEncoded(data.at(i));
+        if (url.host().toLower() == QLatin1String("localhost"))
+            url.setHost(QString());
+        url.setPath(url.path().normalized(QString::NormalizationForm_C));
+        ret.append(url);
+    }
+    return QVariant(ret);
+}
+
+QList<QByteArray> QMacPasteboardMimeFileUri::convertFromMime(const QString &mime, QVariant data, QString flav)
+{
+    QList<QByteArray> ret;
+    if (!canConvert(mime, flav))
+        return ret;
+    QList<QVariant> urls = data.toList();
+    for (int i = 0; i < urls.size(); ++i) {
+        QUrl url = urls.at(i).toUrl();
+        if (url.scheme().isEmpty())
+            url.setScheme(QLatin1String("file"));
+        if (url.scheme().toLower() == QLatin1String("file")) {
+            if (url.host().isEmpty())
+                url.setHost(QLatin1String("localhost"));
+            url.setPath(url.path().normalized(QString::NormalizationForm_D));
+        }
+        ret.append(url.toEncoded());
+    }
+    return ret;
+}
+
+class QMacPasteboardMimeUrl : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeUrl() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeUrl::convertorName()
+{
+    return QLatin1String("URL");
+}
+
+QString QMacPasteboardMimeUrl::flavorFor(const QString &mime)
+{
+    if (mime.startsWith(QLatin1String("text/uri-list")))
+        return QLatin1String("public.url");
+    return QString();
+}
+
+QString QMacPasteboardMimeUrl::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.url"))
+        return QLatin1String("text/uri-list");
+    return QString();
+}
+
+bool QMacPasteboardMimeUrl::canConvert(const QString &mime, QString flav)
+{
+    return flav == QLatin1String("public.url")
+            && mime == QLatin1String("text/uri-list");
+}
+
+QVariant QMacPasteboardMimeUrl::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
+{
+    if (!canConvert(mime, flav))
+        return QVariant();
+
+    QList<QVariant> ret;
+    for (int i=0; i<data.size(); ++i) {
+        QUrl url = QUrl::fromEncoded(data.at(i));
+        if (url.host().toLower() == QLatin1String("localhost"))
+            url.setHost(QString());
+        url.setPath(url.path().normalized(QString::NormalizationForm_C));
+        ret.append(url);
+    }
+    return QVariant(ret);
+}
+
+QList<QByteArray> QMacPasteboardMimeUrl::convertFromMime(const QString &mime, QVariant data, QString flav)
+{
+    QList<QByteArray> ret;
+    if (!canConvert(mime, flav))
+        return ret;
+
+    QList<QVariant> urls = data.toList();
+    for (int i=0; i<urls.size(); ++i) {
+        QUrl url = urls.at(i).toUrl();
+        if (url.scheme().isEmpty())
+            url.setScheme(QLatin1String("file"));
+        if (url.scheme().toLower() == QLatin1String("file")) {
+            if (url.host().isEmpty())
+                url.setHost(QLatin1String("localhost"));
+            url.setPath(url.path().normalized(QString::NormalizationForm_D));
+        }
+        ret.append(url.toEncoded());
+    }
+    return ret;
+}
+
+class QMacPasteboardMimeVCard : public QMacPasteboardMime
+{
+public:
+    QMacPasteboardMimeVCard() : QMacPasteboardMime(MIME_ALL){ }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeVCard::convertorName()
+{
+    return QString("VCard");
+}
+
+bool QMacPasteboardMimeVCard::canConvert(const QString &mime, QString flav)
+{
+    return mimeFor(flav) == mime;
+}
+
+QString QMacPasteboardMimeVCard::flavorFor(const QString &mime)
+{
+    if (mime.startsWith(QLatin1String("text/plain")))
+        return QLatin1String("public.vcard");
+    return QString();
+}
+
+QString QMacPasteboardMimeVCard::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.vcard"))
+        return QLatin1String("text/plain");
+    return QString();
+}
+
+QVariant QMacPasteboardMimeVCard::convertToMime(const QString &mime, QList<QByteArray> data, QString)
+{
+    QByteArray cards;
+    if (mime == QLatin1String("text/plain")) {
+        for (int i=0; i<data.size(); ++i)
+            cards += data[i];
+    }
+    return QVariant(cards);
+}
+
+QList<QByteArray> QMacPasteboardMimeVCard::convertFromMime(const QString &mime, QVariant data, QString)
+{
+    QList<QByteArray> ret;
+    if (mime == QLatin1String("text/plain"))
+        ret.append(data.toString().toUtf8());
+    return ret;
+}
+
+
+/*!
+  \internal
+
+  This is an internal function.
+*/
+void QMacPasteboardMime::initialize()
+{
+    if (globalMimeList()->isEmpty()) {
+        qAddPostRoutine(cleanup_mimes);
+
+        //standard types that we wrap
+        new QMacPasteboardMimeTiff;
+        new QMacPasteboardMimeUnicodeText;
+        new QMacPasteboardMimePlainText;
+        new QMacPasteboardMimeHTMLText;
+        new QMacPasteboardMimeFileUri;
+        new QMacPasteboardMimeUrl;
+        new QMacPasteboardMimeTypeName;
+        new QMacPasteboardMimeVCard;
+        //make sure our "non-standard" types are always last! --Sam
+        new QMacPasteboardMimeAny;
+    }
+}
+
+/*!
+  Returns the most-recently created QMacPasteboardMime of type \a t that can convert
+  between the \a mime and \a flav formats.  Returns 0 if no such convertor
+  exists.
+*/
+QMacPasteboardMime*
+QMacPasteboardMime::convertor(uchar t, const QString &mime, QString flav)
+{
+    MimeList *mimes = globalMimeList();
+    for (MimeList::const_iterator it = mimes->constBegin(); it != mimes->constEnd(); ++it) {
+#ifdef DEBUG_MIME_MAPS
+        qDebug("QMacPasteboardMime::convertor: seeing if %s (%d) can convert %s to %d[%c%c%c%c] [%d]",
+               (*it)->convertorName().toLatin1().constData(),
+               (*it)->type & t, mime.toLatin1().constData(),
+               flav, (flav >> 24) & 0xFF, (flav >> 16) & 0xFF, (flav >> 8) & 0xFF, (flav) & 0xFF,
+               (*it)->canConvert(mime,flav));
+        for (int i = 0; i < (*it)->countFlavors(); ++i) {
+            int f = (*it)->flavor(i);
+            qDebug("  %d) %d[%c%c%c%c] [%s]", i, f,
+                   (f >> 24) & 0xFF, (f >> 16) & 0xFF, (f >> 8) & 0xFF, (f) & 0xFF,
+                   (*it)->convertorName().toLatin1().constData());
+        }
+#endif
+        if (((*it)->type & t) && (*it)->canConvert(mime, flav))
+            return (*it);
+    }
+    return 0;
+}
+/*!
+  Returns a MIME type of type \a t for \a flav, or 0 if none exists.
+*/
+QString QMacPasteboardMime::flavorToMime(uchar t, QString flav)
+{
+    MimeList *mimes = globalMimeList();
+    for (MimeList::const_iterator it = mimes->constBegin(); it != mimes->constEnd(); ++it) {
+#ifdef DEBUG_MIME_MAPS
+        qDebug("QMacMIme::flavorToMime: attempting %s (%d) for flavor %d[%c%c%c%c] [%s]",
+               (*it)->convertorName().toLatin1().constData(),
+               (*it)->type & t, flav, (flav >> 24) & 0xFF, (flav >> 16) & 0xFF, (flav >> 8) & 0xFF, (flav) & 0xFF,
+               (*it)->mimeFor(flav).toLatin1().constData());
+
+#endif
+        if ((*it)->type & t) {
+            QString mimeType = (*it)->mimeFor(flav);
+            if (!mimeType.isNull())
+                return mimeType;
+        }
+    }
+    return QString();
+}
+
+/*!
+  Returns a list of all currently defined QMacPasteboardMime objects of type \a t.
+*/
+QList<QMacPasteboardMime*> QMacPasteboardMime::all(uchar t)
+{
+    MimeList ret;
+    MimeList *mimes = globalMimeList();
+    for (MimeList::const_iterator it = mimes->constBegin(); it != mimes->constEnd(); ++it) {
+        if ((*it)->type & t)
+            ret.append((*it));
+    }
+    return ret;
+}
+
+
+/*!
+  \fn QString QMacPasteboardMime::convertorName()
+
+  Returns a name for the convertor.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+  \fn bool QMacPasteboardMime::canConvert(const QString &mime, QString flav)
+
+  Returns true if the convertor can convert (both ways) between
+  \a mime and \a flav; otherwise returns false.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+  \fn QString QMacPasteboardMime::mimeFor(QString flav)
+
+  Returns the MIME UTI used for Mac flavor \a flav, or 0 if this
+  convertor does not support \a flav.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+  \fn QString QMacPasteboardMime::flavorFor(const QString &mime)
+
+  Returns the Mac UTI used for MIME type \a mime, or 0 if this
+  convertor does not support \a mime.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+    \fn QVariant QMacPasteboardMime::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
+
+    Returns \a data converted from Mac UTI \a flav to MIME type \a
+    mime.
+
+    Note that Mac flavors must all be self-terminating. The input \a
+    data may contain trailing data.
+
+    All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+  \fn QList<QByteArray> QMacPasteboardMime::convertFromMime(const QString &mime, QVariant data, QString flav)
+
+  Returns \a data converted from MIME type \a mime
+    to Mac UTI \a flav.
+
+  Note that Mac flavors must all be self-terminating.  The return
+  value may contain trailing data.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+QT_END_NAMESPACE